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Commit | Line | Data |
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4f914e6e MR |
1 | package PVE::Storage::ZFSPlugin; |
2 | ||
3 | use strict; | |
4 | use warnings; | |
5 | use IO::File; | |
6 | use POSIX; | |
5332e6c9 | 7 | use PVE::Tools qw(run_command); |
4f914e6e | 8 | use PVE::Storage::Plugin; |
4f914e6e MR |
9 | |
10 | use base qw(PVE::Storage::Plugin); | |
a7d56be6 MR |
11 | use PVE::Storage::LunCmd::Comstar; |
12 | use PVE::Storage::LunCmd::Istgt; | |
78a64432 | 13 | use PVE::Storage::LunCmd::Iet; |
4f914e6e MR |
14 | |
15 | my @ssh_opts = ('-o', 'BatchMode=yes'); | |
16 | my @ssh_cmd = ('/usr/bin/ssh', @ssh_opts); | |
3b219e80 | 17 | my $id_rsa_path = '/etc/pve/priv/zfs'; |
4f914e6e | 18 | |
a7d56be6 | 19 | my $lun_cmds = { |
3b219e80 MR |
20 | create_lu => 1, |
21 | delete_lu => 1, | |
22 | import_lu => 1, | |
23 | modify_lu => 1, | |
24 | add_view => 1, | |
25 | list_view => 1, | |
26 | list_lu => 1, | |
a7d56be6 MR |
27 | }; |
28 | ||
29 | my $zfs_unknown_scsi_provider = sub { | |
3b219e80 | 30 | my ($provider) = @_; |
a7d56be6 | 31 | |
3b219e80 | 32 | die "$provider: unknown iscsi provider. Available [comstar, istgt, iet]"; |
a7d56be6 MR |
33 | }; |
34 | ||
35 | my $zfs_get_base = sub { | |
3b219e80 MR |
36 | my ($scfg) = @_; |
37 | ||
38 | if ($scfg->{iscsiprovider} eq 'comstar') { | |
39 | return PVE::Storage::LunCmd::Comstar::get_base; | |
40 | } elsif ($scfg->{iscsiprovider} eq 'istgt') { | |
41 | return PVE::Storage::LunCmd::Istgt::get_base; | |
42 | } elsif ($scfg->{iscsiprovider} eq 'iet') { | |
43 | return PVE::Storage::LunCmd::Iet::get_base; | |
44 | } else { | |
45 | $zfs_unknown_scsi_provider->($scfg->{iscsiprovider}); | |
46 | } | |
a7d56be6 MR |
47 | }; |
48 | ||
4f914e6e MR |
49 | sub zfs_request { |
50 | my ($scfg, $timeout, $method, @params) = @_; | |
51 | ||
5332e6c9 | 52 | my $cmdmap; |
4f914e6e MR |
53 | my $zfscmd; |
54 | my $target; | |
3b219e80 | 55 | my $msg; |
4f914e6e | 56 | |
5332e6c9 | 57 | $timeout = 5 if !$timeout; |
4f914e6e | 58 | |
3b219e80 MR |
59 | if ($lun_cmds->{$method}) { |
60 | if ($scfg->{iscsiprovider} eq 'comstar') { | |
61 | $msg = PVE::Storage::LunCmd::Comstar::run_lun_command($scfg, $timeout, $method, @params); | |
62 | } elsif ($scfg->{iscsiprovider} eq 'istgt') { | |
63 | $msg = PVE::Storage::LunCmd::Istgt::run_lun_command($scfg, $timeout, $method, @params); | |
64 | } elsif ($scfg->{iscsiprovider} eq 'iet') { | |
65 | $msg = PVE::Storage::LunCmd::Iet::run_lun_command($scfg, $timeout, $method, @params); | |
66 | } else { | |
67 | $zfs_unknown_scsi_provider->($scfg->{iscsiprovider}); | |
68 | } | |
69 | } else { | |
70 | if ($method eq 'zpool_list') { | |
71 | $zfscmd = 'zpool'; | |
72 | $method = 'list', | |
73 | } else { | |
74 | $zfscmd = 'zfs'; | |
75 | } | |
76 | ||
77 | $target = 'root@' . $scfg->{portal}; | |
78 | ||
79 | my $cmd = [@ssh_cmd, '-i', "$id_rsa_path/$scfg->{portal}_id_rsa", $target, $zfscmd, $method, @params]; | |
80 | ||
81 | $msg = ''; | |
82 | ||
83 | my $output = sub { | |
84 | my $line = shift; | |
85 | $msg .= "$line\n"; | |
86 | }; | |
87 | ||
88 | run_command($cmd, outfunc => $output, timeout => $timeout); | |
89 | } | |
4f914e6e MR |
90 | |
91 | return $msg; | |
92 | } | |
93 | ||
94 | sub zfs_parse_size { | |
95 | my ($text) = @_; | |
96 | ||
97 | return 0 if !$text; | |
98 | ||
99 | if ($text =~ m/^(\d+(\.\d+)?)([TGMK])?$/) { | |
3b219e80 MR |
100 | my ($size, $reminder, $unit) = ($1, $2, $3); |
101 | return $size if !$unit; | |
102 | if ($unit eq 'K') { | |
103 | $size *= 1024; | |
104 | } elsif ($unit eq 'M') { | |
105 | $size *= 1024*1024; | |
106 | } elsif ($unit eq 'G') { | |
107 | $size *= 1024*1024*1024; | |
108 | } elsif ($unit eq 'T') { | |
109 | $size *= 1024*1024*1024*1024; | |
110 | } | |
111 | ||
112 | if ($reminder) { | |
113 | $size = ceil($size); | |
114 | } | |
115 | return $size; | |
4f914e6e | 116 | } else { |
3b219e80 | 117 | return 0; |
4f914e6e MR |
118 | } |
119 | } | |
120 | ||
121 | sub zfs_get_pool_stats { | |
5332e6c9 | 122 | my ($scfg) = @_; |
4f914e6e | 123 | |
1fca1464 | 124 | my $available = 0; |
5332e6c9 | 125 | my $used = 0; |
4f914e6e | 126 | |
5332e6c9 | 127 | my $text = zfs_request($scfg, undef, 'get', '-o', 'value', '-Hp', |
3b219e80 | 128 | 'available,used', $scfg->{pool}); |
4f914e6e | 129 | |
5332e6c9 | 130 | my @lines = split /\n/, $text; |
4f914e6e | 131 | |
5332e6c9 | 132 | if($lines[0] =~ /^(\d+)$/) { |
3b219e80 | 133 | $available = $1; |
5332e6c9 | 134 | } |
4f914e6e | 135 | |
5332e6c9 | 136 | if($lines[1] =~ /^(\d+)$/) { |
3b219e80 | 137 | $used = $1; |
5332e6c9 | 138 | } |
4f914e6e | 139 | |
1fca1464 | 140 | return ($available, $used); |
4f914e6e MR |
141 | } |
142 | ||
143 | sub zfs_parse_zvol_list { | |
144 | my ($text) = @_; | |
145 | ||
146 | my $list = (); | |
147 | ||
148 | return $list if !$text; | |
149 | ||
150 | my @lines = split /\n/, $text; | |
151 | foreach my $line (@lines) { | |
3b219e80 MR |
152 | if ($line =~ /^(.+)\s+([a-zA-Z0-9\.]+|\-)\s+(.+)$/) { |
153 | my $zvol = {}; | |
5e479180 PRG |
154 | my @parts = split /\//, $1; |
155 | my $name = pop @parts; | |
156 | my $pool = join('/', @parts); | |
157 | ||
158 | if ($pool !~ /^rpool$/) { | |
159 | next unless $name =~ m!^(\w+)-(\d+)-(\w+)-(\d+)$!; | |
160 | $name = $pool . '/' . $name; | |
3b219e80 | 161 | } else { |
5e479180 | 162 | next; |
3b219e80 MR |
163 | } |
164 | ||
5e479180 | 165 | $zvol->{pool} = $pool; |
3b219e80 MR |
166 | $zvol->{name} = $name; |
167 | $zvol->{size} = zfs_parse_size($2); | |
168 | if ($3 !~ /^-$/) { | |
5e479180 | 169 | $zvol->{origin} = $3; |
3b219e80 MR |
170 | } |
171 | push @$list, $zvol; | |
172 | } | |
4f914e6e MR |
173 | } |
174 | ||
175 | return $list; | |
176 | } | |
177 | ||
178 | sub zfs_get_lu_name { | |
179 | my ($scfg, $zvol) = @_; | |
180 | my $object; | |
181 | ||
3b219e80 | 182 | my $base = $zfs_get_base->($scfg); |
4f914e6e | 183 | if ($zvol =~ /^.+\/.+/) { |
a7d56be6 | 184 | $object = "$base/$zvol"; |
5332e6c9 | 185 | } else { |
a7d56be6 | 186 | $object = "$base/$scfg->{pool}/$zvol"; |
4f914e6e MR |
187 | } |
188 | ||
a7d56be6 MR |
189 | my $lu_name = zfs_request($scfg, undef, 'list_lu', $object); |
190 | ||
3b219e80 MR |
191 | return $lu_name if $lu_name; |
192 | ||
4f914e6e MR |
193 | die "Could not find lu_name for zvol $zvol"; |
194 | } | |
195 | ||
196 | sub zfs_get_zvol_size { | |
197 | my ($scfg, $zvol) = @_; | |
198 | ||
199 | my $text = zfs_request($scfg, undef, 'get', '-Hp', 'volsize', "$scfg->{pool}/$zvol"); | |
200 | ||
201 | if($text =~ /volsize\s(\d+)/){ | |
3b219e80 | 202 | return $1; |
4f914e6e MR |
203 | } |
204 | ||
205 | die "Could not get zvol size"; | |
206 | } | |
207 | ||
208 | sub zfs_add_lun_mapping_entry { | |
209 | my ($scfg, $zvol, $guid) = @_; | |
210 | ||
211 | if (! defined($guid)) { | |
3b219e80 | 212 | $guid = zfs_get_lu_name($scfg, $zvol); |
4f914e6e | 213 | } |
3b219e80 | 214 | |
4f914e6e MR |
215 | zfs_request($scfg, undef, 'add_view', $guid); |
216 | } | |
217 | ||
218 | sub zfs_delete_lu { | |
219 | my ($scfg, $zvol) = @_; | |
220 | ||
221 | my $guid = zfs_get_lu_name($scfg, $zvol); | |
222 | ||
223 | zfs_request($scfg, undef, 'delete_lu', $guid); | |
224 | } | |
225 | ||
226 | sub zfs_create_lu { | |
227 | my ($scfg, $zvol) = @_; | |
228 | ||
3b219e80 | 229 | my $base = $zfs_get_base->($scfg); |
a7d56be6 | 230 | my $guid = zfs_request($scfg, undef, 'create_lu', "$base/$scfg->{pool}/$zvol"); |
4f914e6e MR |
231 | |
232 | return $guid; | |
233 | } | |
234 | ||
235 | sub zfs_import_lu { | |
236 | my ($scfg, $zvol) = @_; | |
237 | ||
3b219e80 | 238 | my $base = $zfs_get_base->($scfg); |
a7d56be6 | 239 | zfs_request($scfg, undef, 'import_lu', "$base/$scfg->{pool}/$zvol"); |
4f914e6e MR |
240 | } |
241 | ||
242 | sub zfs_resize_lu { | |
243 | my ($scfg, $zvol, $size) = @_; | |
244 | ||
245 | my $guid = zfs_get_lu_name($scfg, $zvol); | |
246 | ||
a7d56be6 | 247 | zfs_request($scfg, undef, 'modify_lu', "${size}K", $guid); |
4f914e6e MR |
248 | } |
249 | ||
250 | sub zfs_create_zvol { | |
251 | my ($scfg, $zvol, $size) = @_; | |
a9bd7bdf CA |
252 | |
253 | my $sparse = ''; | |
254 | if ($scfg->{sparse}) { | |
255 | $sparse = '-s'; | |
256 | } | |
4f914e6e | 257 | |
a9bd7bdf | 258 | zfs_request($scfg, undef, 'create', $sparse, '-b', $scfg->{blocksize}, '-V', "${size}k", "$scfg->{pool}/$zvol"); |
4f914e6e MR |
259 | } |
260 | ||
261 | sub zfs_delete_zvol { | |
262 | my ($scfg, $zvol) = @_; | |
263 | ||
264 | zfs_request($scfg, undef, 'destroy', '-r', "$scfg->{pool}/$zvol"); | |
265 | } | |
266 | ||
267 | sub zfs_get_lun_number { | |
268 | my ($scfg, $guid) = @_; | |
4f914e6e MR |
269 | |
270 | die "could not find lun_number for guid $guid" if !$guid; | |
271 | ||
a7d56be6 | 272 | return zfs_request($scfg, undef, 'list_view', $guid); |
4f914e6e MR |
273 | } |
274 | ||
275 | sub zfs_list_zvol { | |
276 | my ($scfg) = @_; | |
277 | ||
5e479180 | 278 | my $text = zfs_request($scfg, 10, 'list', '-o', 'name,volsize,origin', '-t', 'volume', '-Hr'); |
4f914e6e MR |
279 | my $zvols = zfs_parse_zvol_list($text); |
280 | return undef if !$zvols; | |
281 | ||
282 | my $list = (); | |
283 | foreach my $zvol (@$zvols) { | |
3b219e80 MR |
284 | my @values = split('/', $zvol->{name}); |
285 | ||
5e479180 PRG |
286 | my $image = pop @values; |
287 | my $pool = join('/', @values); | |
3b219e80 MR |
288 | |
289 | next if $image !~ m/^((vm|base)-(\d+)-\S+)$/; | |
290 | my $owner = $3; | |
291 | ||
292 | my $parent = $zvol->{origin}; | |
293 | if($zvol->{origin} && $zvol->{origin} =~ m/^$scfg->{pool}\/(\S+)$/){ | |
294 | $parent = $1; | |
295 | } | |
296 | ||
297 | $list->{$pool}->{$image} = { | |
298 | name => $image, | |
299 | size => $zvol->{size}, | |
300 | parent => $parent, | |
301 | format => 'raw', | |
302 | vmid => $owner | |
303 | }; | |
4f914e6e MR |
304 | } |
305 | ||
306 | return $list; | |
307 | } | |
308 | ||
309 | # Configuration | |
310 | ||
311 | sub type { | |
312 | return 'zfs'; | |
313 | } | |
314 | ||
315 | sub plugindata { | |
316 | return { | |
3b219e80 | 317 | content => [ {images => 1}, { images => 1 }], |
4f914e6e MR |
318 | }; |
319 | } | |
320 | ||
321 | sub properties { | |
322 | return { | |
3b219e80 MR |
323 | iscsiprovider => { |
324 | description => "iscsi provider", | |
325 | type => 'string', | |
326 | }, | |
a9bd7bdf CA |
327 | blocksize => { |
328 | description => "block size", | |
329 | type => 'string', | |
330 | }, | |
70986fd9 CA |
331 | # this will disable write caching on comstar and istgt. |
332 | # it is not implemented for iet. iet blockio always operates with | |
333 | # writethrough caching when not in readonly mode | |
334 | nowritecache => { | |
335 | description => "disable write caching on the target", | |
336 | type => 'boolean', | |
337 | }, | |
a9bd7bdf CA |
338 | sparse => { |
339 | description => "use sparse volumes", | |
340 | type => 'boolean', | |
454c15e2 CA |
341 | }, |
342 | comstar_tg => { | |
343 | description => "target group for comstar views", | |
344 | type => 'string', | |
345 | }, | |
346 | comstar_hg => { | |
347 | description => "host group for comstar views", | |
348 | type => 'string', | |
349 | }, | |
4f914e6e MR |
350 | }; |
351 | } | |
352 | ||
353 | sub options { | |
354 | return { | |
a7d56be6 MR |
355 | nodes => { optional => 1 }, |
356 | disable => { optional => 1 }, | |
357 | portal => { fixed => 1 }, | |
3b219e80 | 358 | target => { fixed => 1 }, |
a7d56be6 | 359 | pool => { fixed => 1 }, |
3b219e80 MR |
360 | blocksize => { fixed => 1 }, |
361 | iscsiprovider => { fixed => 1 }, | |
70986fd9 | 362 | nowritecache => { optional => 1 }, |
a9bd7bdf | 363 | sparse => { optional => 1 }, |
454c15e2 CA |
364 | comstar_hg => { optional => 1 }, |
365 | comstar_tg => { optional => 1 }, | |
3b219e80 | 366 | content => { optional => 1 }, |
4f914e6e MR |
367 | }; |
368 | } | |
369 | ||
370 | # Storage implementation | |
371 | ||
372 | sub parse_volname { | |
373 | my ($class, $volname) = @_; | |
374 | ||
375 | if ($volname =~ m/^(((base|vm)-(\d+)-\S+)\/)?((base)?(vm)?-(\d+)-\S+)$/) { | |
3b219e80 | 376 | return ('images', $5, $8, $2, $4, $6); |
4f914e6e MR |
377 | } |
378 | ||
379 | die "unable to parse zfs volume name '$volname'\n"; | |
380 | } | |
381 | ||
382 | sub path { | |
383 | my ($class, $scfg, $volname) = @_; | |
384 | ||
385 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
386 | ||
387 | my $target = $scfg->{target}; | |
388 | my $portal = $scfg->{portal}; | |
389 | ||
390 | my $guid = zfs_get_lu_name($scfg, $name); | |
391 | my $lun = zfs_get_lun_number($scfg, $guid); | |
3b219e80 | 392 | |
4f914e6e | 393 | my $path = "iscsi://$portal/$target/$lun"; |
3b219e80 | 394 | |
4f914e6e MR |
395 | return ($path, $vmid, $vtype); |
396 | } | |
397 | ||
398 | my $find_free_diskname = sub { | |
399 | my ($storeid, $scfg, $vmid) = @_; | |
400 | ||
401 | my $name = undef; | |
402 | my $volumes = zfs_list_zvol($scfg); | |
403 | ||
404 | my $disk_ids = {}; | |
405 | my $dat = $volumes->{$scfg->{pool}}; | |
406 | ||
407 | foreach my $image (keys %$dat) { | |
408 | my $volname = $dat->{$image}->{name}; | |
409 | if ($volname =~ m/(vm|base)-$vmid-disk-(\d+)/){ | |
410 | $disk_ids->{$2} = 1; | |
411 | } | |
412 | } | |
413 | ||
414 | for (my $i = 1; $i < 100; $i++) { | |
415 | if (!$disk_ids->{$i}) { | |
416 | return "vm-$vmid-disk-$i"; | |
417 | } | |
418 | } | |
419 | ||
420 | die "unable to allocate an image name for VM $vmid in storage '$storeid'\n"; | |
421 | }; | |
422 | ||
423 | sub create_base { | |
424 | my ($class, $storeid, $scfg, $volname) = @_; | |
425 | ||
426 | my $snap = '__base__'; | |
427 | ||
428 | my ($vtype, $name, $vmid, $basename, $basevmid, $isBase) = | |
429 | $class->parse_volname($volname); | |
430 | ||
431 | die "create_base not possible with base image\n" if $isBase; | |
432 | ||
433 | my $newname = $name; | |
434 | $newname =~ s/^vm-/base-/; | |
435 | ||
436 | my $newvolname = $basename ? "$basename/$newname" : "$newname"; | |
437 | ||
438 | zfs_delete_lu($scfg, $name); | |
439 | zfs_request($scfg, undef, 'rename', "$scfg->{pool}/$name", "$scfg->{pool}/$newname"); | |
440 | ||
441 | my $guid = zfs_create_lu($scfg, $newname); | |
442 | zfs_add_lun_mapping_entry($scfg, $newname, $guid); | |
443 | ||
444 | my $running = undef; #fixme : is create_base always offline ? | |
445 | ||
446 | $class->volume_snapshot($scfg, $storeid, $newname, $snap, $running); | |
447 | ||
448 | return $newvolname; | |
449 | } | |
450 | ||
451 | sub clone_image { | |
f236eaf8 | 452 | my ($class, $scfg, $storeid, $volname, $vmid, $snap) = @_; |
4f914e6e | 453 | |
f236eaf8 | 454 | $snap ||= '__base__'; |
4f914e6e MR |
455 | |
456 | my ($vtype, $basename, $basevmid, undef, undef, $isBase) = | |
457 | $class->parse_volname($volname); | |
458 | ||
459 | die "clone_image only works on base images\n" if !$isBase; | |
460 | ||
461 | my $name = &$find_free_diskname($storeid, $scfg, $vmid); | |
462 | ||
463 | warn "clone $volname: $basename to $name\n"; | |
464 | ||
465 | zfs_request($scfg, undef, 'clone', "$scfg->{pool}/$basename\@$snap", "$scfg->{pool}/$name"); | |
466 | ||
467 | my $guid = zfs_create_lu($scfg, $name); | |
468 | zfs_add_lun_mapping_entry($scfg, $name, $guid); | |
469 | ||
470 | return $name; | |
471 | } | |
472 | ||
473 | sub alloc_image { | |
474 | my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_; | |
475 | ||
476 | die "unsupported format '$fmt'" if $fmt ne 'raw'; | |
477 | ||
478 | die "illegal name '$name' - sould be 'vm-$vmid-*'\n" | |
3b219e80 | 479 | if $name && $name !~ m/^vm-$vmid-/; |
4f914e6e MR |
480 | |
481 | $name = &$find_free_diskname($storeid, $scfg, $vmid); | |
482 | ||
483 | zfs_create_zvol($scfg, $name, $size); | |
484 | my $guid = zfs_create_lu($scfg, $name); | |
485 | zfs_add_lun_mapping_entry($scfg, $name, $guid); | |
486 | ||
487 | return $name; | |
488 | } | |
489 | ||
490 | sub free_image { | |
491 | my ($class, $storeid, $scfg, $volname, $isBase) = @_; | |
492 | ||
493 | my ($vtype, $name, $vmid) = $class->parse_volname($volname); | |
494 | ||
495 | zfs_delete_lu($scfg, $name); | |
496 | eval { | |
497 | zfs_delete_zvol($scfg, $name); | |
498 | }; | |
499 | do { | |
500 | my $err = $@; | |
501 | my $guid = zfs_create_lu($scfg, $name); | |
502 | zfs_add_lun_mapping_entry($scfg, $name, $guid); | |
503 | die $err; | |
504 | } if $@; | |
505 | ||
506 | return undef; | |
507 | } | |
508 | ||
509 | sub list_images { | |
510 | my ($class, $storeid, $scfg, $vmid, $vollist, $cache) = @_; | |
511 | ||
512 | $cache->{zfs} = zfs_list_zvol($scfg) if !$cache->{zfs}; | |
513 | my $zfspool = $scfg->{pool}; | |
514 | my $res = []; | |
515 | ||
516 | if (my $dat = $cache->{zfs}->{$zfspool}) { | |
517 | ||
3b219e80 | 518 | foreach my $image (keys %$dat) { |
4f914e6e | 519 | |
3b219e80 MR |
520 | my $volname = $dat->{$image}->{name}; |
521 | my $parent = $dat->{$image}->{parent}; | |
4f914e6e | 522 | |
3b219e80 | 523 | my $volid = undef; |
4f914e6e | 524 | if ($parent && $parent =~ m/^(\S+)@(\S+)$/) { |
3b219e80 MR |
525 | my ($basename) = ($1); |
526 | $volid = "$storeid:$basename/$volname"; | |
527 | } else { | |
528 | $volid = "$storeid:$volname"; | |
529 | } | |
530 | ||
531 | my $owner = $dat->{$volname}->{vmid}; | |
532 | if ($vollist) { | |
533 | my $found = grep { $_ eq $volid } @$vollist; | |
534 | next if !$found; | |
535 | } else { | |
536 | next if defined ($vmid) && ($owner ne $vmid); | |
537 | } | |
538 | ||
539 | my $info = $dat->{$volname}; | |
540 | $info->{volid} = $volid; | |
541 | push @$res, $info; | |
542 | } | |
4f914e6e MR |
543 | } |
544 | ||
545 | return $res; | |
546 | } | |
547 | ||
548 | sub status { | |
549 | my ($class, $storeid, $scfg, $cache) = @_; | |
550 | ||
551 | my $total = 0; | |
552 | my $free = 0; | |
553 | my $used = 0; | |
554 | my $active = 0; | |
555 | ||
556 | eval { | |
3b219e80 MR |
557 | ($free, $used) = zfs_get_pool_stats($scfg); |
558 | $active = 1; | |
559 | $total = $free + $used; | |
4f914e6e MR |
560 | }; |
561 | warn $@ if $@; | |
562 | ||
563 | return ($total, $free, $used, $active); | |
564 | } | |
565 | ||
566 | sub activate_storage { | |
567 | my ($class, $storeid, $scfg, $cache) = @_; | |
568 | return 1; | |
569 | } | |
570 | ||
571 | sub deactivate_storage { | |
572 | my ($class, $storeid, $scfg, $cache) = @_; | |
573 | return 1; | |
574 | } | |
575 | ||
576 | sub activate_volume { | |
577 | my ($class, $storeid, $scfg, $volname, $exclusive, $cache) = @_; | |
578 | return 1; | |
579 | } | |
580 | ||
581 | sub deactivate_volume { | |
582 | my ($class, $storeid, $scfg, $volname, $exclusive, $cache) = @_; | |
583 | return 1; | |
584 | } | |
585 | ||
586 | sub volume_size_info { | |
587 | my ($class, $scfg, $storeid, $volname, $timeout) = @_; | |
588 | ||
589 | return zfs_get_zvol_size($scfg, $volname); | |
590 | } | |
591 | ||
592 | sub volume_resize { | |
593 | my ($class, $scfg, $storeid, $volname, $size, $running) = @_; | |
594 | ||
595 | my $new_size = ($size/1024); | |
596 | ||
597 | zfs_request($scfg, undef, 'set', 'volsize=' . $new_size . 'k', "$scfg->{pool}/$volname"); | |
598 | zfs_resize_lu($scfg, $volname, $new_size); | |
599 | } | |
600 | ||
601 | sub volume_snapshot { | |
602 | my ($class, $scfg, $storeid, $volname, $snap, $running) = @_; | |
603 | ||
604 | zfs_request($scfg, undef, 'snapshot', "$scfg->{pool}/$volname\@$snap"); | |
605 | } | |
606 | ||
607 | sub volume_snapshot_rollback { | |
608 | my ($class, $scfg, $storeid, $volname, $snap) = @_; | |
609 | ||
a315b9ff CA |
610 | # abort rollback if snapshot is not the latest |
611 | my @params = ('-t', 'snapshot', '-o', 'name', '-s', 'creation'); | |
612 | my $text = zfs_request($scfg, undef, 'list', @params); | |
613 | my @snapshots = split(/\n/, $text); | |
614 | my $recentsnap = undef; | |
615 | foreach (@snapshots) { | |
616 | if (/$scfg->{pool}\/$volname/) { | |
617 | s/^.*@//; | |
618 | $recentsnap = $_; | |
619 | } | |
620 | } | |
621 | if ($snap ne $recentsnap) { | |
622 | die "cannot rollback, more recent snapshots exist\n"; | |
623 | } | |
624 | ||
4f914e6e MR |
625 | zfs_delete_lu($scfg, $volname); |
626 | ||
627 | zfs_request($scfg, undef, 'rollback', "$scfg->{pool}/$volname\@$snap"); | |
628 | ||
629 | zfs_import_lu($scfg, $volname); | |
630 | ||
631 | zfs_add_lun_mapping_entry($scfg, $volname); | |
632 | } | |
633 | ||
634 | sub volume_snapshot_delete { | |
635 | my ($class, $scfg, $storeid, $volname, $snap, $running) = @_; | |
636 | ||
637 | zfs_request($scfg, undef, 'destroy', "$scfg->{pool}/$volname\@$snap"); | |
638 | } | |
639 | ||
640 | sub volume_has_feature { | |
641 | my ($class, $scfg, $feature, $storeid, $volname, $snapname, $running) = @_; | |
642 | ||
643 | my $features = { | |
3b219e80 MR |
644 | snapshot => { current => 1, snap => 1}, |
645 | clone => { base => 1}, | |
646 | template => { current => 1}, | |
647 | copy => { base => 1, current => 1}, | |
4f914e6e MR |
648 | }; |
649 | ||
650 | my ($vtype, $name, $vmid, $basename, $basevmid, $isBase) = | |
3b219e80 | 651 | $class->parse_volname($volname); |
4f914e6e MR |
652 | |
653 | my $key = undef; | |
5332e6c9 DM |
654 | |
655 | if ($snapname) { | |
3b219e80 | 656 | $key = 'snap'; |
4f914e6e | 657 | } else { |
3b219e80 | 658 | $key = $isBase ? 'base' : 'current'; |
4f914e6e | 659 | } |
5332e6c9 | 660 | |
4f914e6e MR |
661 | return 1 if $features->{$feature}->{$key}; |
662 | ||
663 | return undef; | |
664 | } | |
665 | ||
666 | 1; |